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Title: Revisiting the Solution Structure of Ceric Ammonium Nitrate

Journal Article · · Angewandte Chemie (International Edition)

Ceric ammonium nitrate (CAN) is a single-electron-transfer reagent with unparalleled utility in organic synthesis, and has emerged as a vital feedstock in diverse chemical industries. Most applications use CAN in solution where it is assigned a monomeric [Ce-IV(NO3)(6)](2-) structure; an assumption traced to half-century old studies. Using synchrotron X-rays and Raman spectroscopy we challenge this tradition, converging instead on an oxo-bridged dinuclear complex, even in strong nitric acid. Thus, one equivalent of CAN is recast as a two-electron-transfer reagent and a redox-activated superbase, raising questions regarding the origins of its reactivity with organic molecules and giving new fundamental insight into the stability of polynuclear complexes of tetravalent ions.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science - Office of Basic Energy Sciences - Chemical Sciences, Geosciences, and Biosciences Division
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1392400
Journal Information:
Angewandte Chemie (International Edition), Vol. 54, Issue 26; ISSN 1433-7851
Publisher:
Wiley
Country of Publication:
United States
Language:
English

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